Many creatures in our sea, rivers and land that exists, that are poisonous and venomous to human and other animals, too. We are not even aware which animal in the land or sea creatures are venomous and even harmful to humans. If you are a diver, or loves to swim, better look out for this creatures you might encounter at the sea or underwater.

1) Cuttlefish

Cuttlefish (itsnature.org)

Cuttlefish belongs to the squid and octopus family, and they have ten tentacles. At the center of their tentacles, the base of the cuttlefish’s head is their beak. They have the ability to inject venom to their prey’s nervous system. But the cuttlefish’s venom are are not harmful to humans.

2) Polythoa Coral

Polythoa Coral (itsnature.org)

There are various kinds of corals in the world, but it was known that the most venomous corals are the Polythoa corals. It has a high toxic that could kill a person if given the opportunity to be injected by these species of polythoa. According to some studies, the symptoms of the toxins are chest pains, difficulty in breathing and may lead to lost of breath and fast pulse rate.

3) Blue Ringed Octopus

Blue Ringed Octopus (purpleslinky.com)

The Blue-ringed octopus are the second most venomous species in the world and have the ability to kill human in a matter of 2 minutes only. This species are habitats of Japan sea, and according to scientists and zoologist the venom of the blue-ringed octopus is 10,000 times lethal than cyanide poison.

4) Box Jelly Fish

Box Jelly Fish (purpleslinky.com)

The box Jellyfish are known the third deadly poisonous creatures in the world, and commonly found in the Pacific ocean. It has three meters tentacles, and when accidentally touch by human, the venom could kill in 5 minutes only.

Irukandjii Jellyfish (Google.image)

Most lethal next to Box jellyfish found on sea waters of Australia named after the Irukandji aborigines of Autralia because of mysterious illness and death due to inflicted venom by the jellyfish. These irukandji jellyfish are very small about 2.5 cm but very dangerous to human.

5) Coned-Snail

Cone Snail (itsnature.org)

Cone snails has unique proboscis with a harpoon-like attached at the end,  and used as spear to attack its prey, commonly the small fish. The venom from cone snail are strong enough to paralyze its prey in seconds. There are reports that the  death of divers, the cone snail are the one responsible for this death.

6) Scorpion Fish

Scorpion Fish (itsnature.org)

The Scorpion fish are part of Scorpaenidae family found in the coldest ocean in the world. Scorpaenidae family consist of known 400 species, like the stonefish, lionfish and devilfish, and their camouflage color are used to trick their preys. The sting from the venomous spine of Scorpion fish are most dangerous and lethal ro human, too, found around the anal and dorsal fin areas.

7) Stonefish

Stone Fish (fishindexblogspot.com)

Stonefish or Synanceia Verrucosa, are one of the most dangerous and venomous species of fish and even very fatal to human if untreated after 3 hours of inflicted by the venom sting. The stonefish have potent neuro-toxins secreted from their glands at the base of their dorsal fins and 13 spines and release the venom coming from two sacs.

8) Lionfish

Lionfish (fishindexblogspot.com)

The Lionfish have large fan-like pectoral fins but are dangerous not only with the other sea creatures, but also in human. The spines in the dorsal fins have a strong poison contents, and maybe one reason they are not scared of divers.

9) Longhorn Fish

Longhorn Cowfish (bountyfishing.com)

Longhorn Cowfish (marinecenter.com)

The Longhorn Cowfish commonly found in Indo-Pacific region. Their flesh are poisonous and not for human consumptions.

10) Golpher Rockfish

Gopher Rockfish (Wilkipedia)

Black Rockfish (Wilkipedia)

The Gopher and the Black Rockfish inhabitant of the North Pacific, all species of its kind contains poison in their glands, dorsal, anal and pelvic spines. And not safe to human.

11) Puffer Fish

Fugu Fish (yahoo.com)

Fugu Fish (yahoo.com.image)

Midnight Arothon Puffer (fishindexblogspot.com)

Spotted Puffer Fish (fishindexblogspot.com)

The puffer fish come in different varieties of species, they have the ability to inflate their bodies to frightened their predators. But all kinds of puffer fish have poisonous meat and not safe for human to eat. But in Japan, the Fugu puffer fish is one of the Japanese famous cuisine and expensive delicacy. But only professionals and licensed chef are allowed to cook this Fugu puffer fish.

12) Fu Manchu Fish

Fu Manchu Lionfish (fishindexblogspot.com)

Fu Manchu fish, just like the porcupine fish, they have pectoral fins -like quill for dorsal fins. If accidentally you will be pricked by their quill, it causes painful shock-pains. The fins contain venom.

13) Porcupine Fish

Porcupine Inflated-Pufferfish (fishindexblogspot.com)

Porcupine fish are member of puffer family, with poisonous dorsal fins, and some meaty parts. Porcupine fish are dangerous to human.

File Fish (sunfish family) fishindexblogspot.com

Filefish are family member of the sunfish and porcupine fish, and dangerous for human to be sting by this fish that causes, paralysis and maybe death.

14) Spotted Ratfish

Spotted Ratfish (fishincexblogspot.com)

The Spotted Ratfish or Hydrolagus are member of shark family with venomous spines on the dorsal fin edge. These can be found in Pacific ocean at 3,000 feet deep, but they move to shallow surfaces during the month of Spring and Autumn season.

15) Blue Spotted Stingray

Blue Spotted Stingray (fishindexblogspot.com)

Blue spotted stingray are actually of shark family, found in East Africa, West Pacific, Red Sea, East Africa, Japan and Southern Australia, found in shallow waters, but have the ability to bury their body in the sand of the ocean floor. The large spined-tail of stingray is dangerous and can even be deadly. The huge venomous barbs that can wound the victims can cause death if not properly treated.

16) Electric Eel

Electric Eel (fishindexblofspot.com)

Electric eel or Electrophorus Electricus freaky and strange fish have the ability to discharge 600 volts of electricity in waters that causes damages to its prey, may it be predators or human. They can grow over 8′ in length and weigh 45 pounds. Although human deaths are rare, these electric eels are considered dangerous because of the electric shock and leads to heart attack.Electric eels have poor eyesight and they are not considered as eel family but of catfish family found in Amazon rivers and other places in South America.

Elephant-Nosed Fish

Elephant-Nosed fish (fishindexblogspot.com)

Elephant-nosed fish , commonly found in Niger river in Western Africa. These strange and weird fish, has a small amount of electricity but not much as of the electric eels.

17) Dragon Fish

Dragon Fish, Thailand (Jurgen Holzel)

The Dragon fish are found near the rocky coastline and corals in Thailand. A sting from its needles brings immediate extreme pains and swell in few seconds and need medical attention immediately.

18) Crown of Thorns  Starfish

Crown of Thorns Starfish (Acanthaster Planci) (Google images)

The Crown of Thorns starfish are the most venomous hairy starfish, and have 10 or more spiny arms with toxic thorn-like spines.

19) Fire Urchins

Fire Urchins (Asthenosoma Varium)(Google images)

The Fire sea urchins (Asthenosoma Varium), the poisonous spines, where small shrimps hide like the Periellmenes Colemani. If sting or injected by their needle-like horns the victim will have the extreme pain and need immediate medical assistance.

Periellmenes Colemani Shrimps(Google images)

Sea Cucumber

Sea Cucumber with Cuverian Threads (Google images)

The sea cucumber (Bohadschia argus) with thread-like structure called Cuiverian, are part of their guts. The Cuiverian are very toxic called Holothurin and can paralyze the predators. It can harm human too.

20) Poisonous Sea Slugs

Glaucus Atlanticus Sea Slugs (Wilkipedia)

The Glaucus Atlanticus sea slugs are poisonous, maybe because they don’t have protective shells like the snails. Their toxins are collected in as sac called Cnidosacs on the tip of their cerata, the thin feather-like  fingers on the body. The stored venom produces more powerful and deadly injection to human and their predators. There are various kind of sea slugs and very colorful but be careful not to touch them.

Sea Slugs (downbelow.co.uk)

Sea Slugs (downbelow.co.uk)

Sea Slugs (downbelow.co.uk)

 

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